1#include <sys/param.h>
2#include <sys/systm.h> /* XXX printf() */
3
4#include <sys/types.h>
5#include <sys/fcntl.h>
6#include <sys/file.h>
7#include <sys/kauth.h>
8#include <sys/mount.h>
9#include <sys/msg.h>
10#include <sys/proc.h>
11#include <sys/socketvar.h>
12#include <sys/vnode.h>
13#include <security/mac.h>
14#include <security/mac_policy.h>
15
16#include <libkern/section_keywords.h>
17#include <libkern/OSDebug.h> /* OSBPrintBacktrace */
18
19
20/* forward declaration; see bsd_init.c */
21errno_t check_policy_init(int);
22int get_thread_lock_count(thread_t th); /* forced forward */
23
24/*
25 * Policy flags used when the policy is enabled
26 *
27 * Note: CHECK_POLICY_CHECK is probably not very useful unless you
28 * are kernel debugging and set a breakpoint.
29 */
30#define CHECK_POLICY_CHECK 0x00000001 /* Check on calls */
31#define CHECK_POLICY_FAIL 0x00000002 /* EPERM on fails */
32#define CHECK_POLICY_BACKTRACE 0x00000004 /* Show call stack on fails */
33#define CHECK_POLICY_PANIC 0x00000008 /* Panic on fails */
34#define CHECK_POLICY_PERIODIC 0x00000010 /* Show fails periodically */
35
36static int policy_flags = 0;
37
38
39#define CHECK_SET_HOOK(x) .mpo_##x = (mpo_##x##_t *)common_hook,
40
41/*
42 * Init; currently, we only print our arrival notice.
43 */
44static void
45hook_policy_init(struct mac_policy_conf *mpc)
46{
47 printf("Policy '%s' = '%s' ready\n", mpc->mpc_name, mpc->mpc_fullname);
48}
49
50static void
51hook_policy_initbsd(struct mac_policy_conf *mpc)
52{
53 /* called with policy_grab_exclusive mutex held; exempt */
54 printf("hook_policy_initbsd: %s\n", mpc->mpc_name);
55}
56
57
58/* Implementation */
59#define CLASS_PERIOD_LIMIT 10000
60#define CLASS_PERIOD_MULT 20
61
62static int policy_check_event = 1;
63static int policy_check_period = 1;
64static int policy_check_next = CLASS_PERIOD_MULT;
65
66
67static int
68common_hook(void)
69{
70 int i;
71 int rv = 0;
72
73 if ((i = get_thread_lock_count(current_thread())) != 0) {
74 /*
75 * fail the MACF check if we hold a lock; this assumes a
76 * a non-void (authorization) MACF hook.
77 */
78 if (policy_flags & CHECK_POLICY_FAIL)
79 rv = EPERM;
80
81 /*
82 * display a backtrace if we hold a lock and we are not
83 * going to panic
84 */
85 if ((policy_flags & (CHECK_POLICY_BACKTRACE | CHECK_POLICY_PANIC)) == CHECK_POLICY_BACKTRACE) {
86 if (policy_flags & CHECK_POLICY_PERIODIC) {
87 /* at exponentially increasing intervals */
88 if (!(policy_check_event % policy_check_period)) {
89 if (policy_check_event <= policy_check_next || policy_check_period == CLASS_PERIOD_LIMIT) {
90 /*
91 * According to Derek, we could
92 * technically get a symbolicated name
93 * here, if we refactered some code
94 * and set the "keepsyms=1" boot
95 * argument...
96 */
97 OSReportWithBacktrace("calling MACF hook with mutex count %d (event %d) ", i, policy_check_event);
98 }
99 } else {
100 if (policy_check_period < CLASS_PERIOD_LIMIT) {
101 policy_check_next *= CLASS_PERIOD_MULT;
102 policy_check_period *= CLASS_PERIOD_MULT;
103 }
104 }
105 } else {
106 /* always */
107 OSReportWithBacktrace("calling MACF hook with mutex count %d (event %d) ", i, policy_check_event);
108 }
109 }
110
111 /* Panic */
112 if (policy_flags & CHECK_POLICY_PANIC)
113 panic("calling MACF hook with mutex count %d\n", i);
114
115 /* count for non-fatal tracing */
116 policy_check_event++;
117 }
118
119 return rv;
120}
121
122#if (MAC_POLICY_OPS_VERSION != 55)
123# error "struct mac_policy_ops doesn't match definition in mac_policy.h"
124#endif
125/*
126 * Policy hooks; one per possible hook
127 *
128 * Please note that this struct initialization should be kept in sync with
129 * security/mac_policy.h (mac_policy_ops struct definition).
130 */
131const static struct mac_policy_ops policy_ops = {
132 CHECK_SET_HOOK(audit_check_postselect)
133 CHECK_SET_HOOK(audit_check_preselect)
134
135 CHECK_SET_HOOK(bpfdesc_label_associate)
136 CHECK_SET_HOOK(bpfdesc_label_destroy)
137 CHECK_SET_HOOK(bpfdesc_label_init)
138 CHECK_SET_HOOK(bpfdesc_check_receive)
139
140 CHECK_SET_HOOK(cred_check_label_update_execve)
141 CHECK_SET_HOOK(cred_check_label_update)
142 CHECK_SET_HOOK(cred_check_visible)
143 CHECK_SET_HOOK(cred_label_associate_fork)
144 CHECK_SET_HOOK(cred_label_associate_kernel)
145 CHECK_SET_HOOK(cred_label_associate)
146 CHECK_SET_HOOK(cred_label_associate_user)
147 CHECK_SET_HOOK(cred_label_destroy)
148 CHECK_SET_HOOK(cred_label_externalize_audit)
149 CHECK_SET_HOOK(cred_label_externalize)
150 CHECK_SET_HOOK(cred_label_init)
151 CHECK_SET_HOOK(cred_label_internalize)
152 CHECK_SET_HOOK(cred_label_update_execve)
153 CHECK_SET_HOOK(cred_label_update)
154
155 CHECK_SET_HOOK(devfs_label_associate_device)
156 CHECK_SET_HOOK(devfs_label_associate_directory)
157 CHECK_SET_HOOK(devfs_label_copy)
158 CHECK_SET_HOOK(devfs_label_destroy)
159 CHECK_SET_HOOK(devfs_label_init)
160 CHECK_SET_HOOK(devfs_label_update)
161
162 CHECK_SET_HOOK(file_check_change_offset)
163 CHECK_SET_HOOK(file_check_create)
164 CHECK_SET_HOOK(file_check_dup)
165 CHECK_SET_HOOK(file_check_fcntl)
166 CHECK_SET_HOOK(file_check_get_offset)
167 CHECK_SET_HOOK(file_check_get)
168 CHECK_SET_HOOK(file_check_inherit)
169 CHECK_SET_HOOK(file_check_ioctl)
170 CHECK_SET_HOOK(file_check_lock)
171 CHECK_SET_HOOK(file_check_mmap_downgrade)
172 CHECK_SET_HOOK(file_check_mmap)
173 CHECK_SET_HOOK(file_check_receive)
174 CHECK_SET_HOOK(file_check_set)
175 CHECK_SET_HOOK(file_label_init)
176 CHECK_SET_HOOK(file_label_destroy)
177 CHECK_SET_HOOK(file_label_associate)
178
179 CHECK_SET_HOOK(ifnet_check_label_update)
180 CHECK_SET_HOOK(ifnet_check_transmit)
181 CHECK_SET_HOOK(ifnet_label_associate)
182 CHECK_SET_HOOK(ifnet_label_copy)
183 CHECK_SET_HOOK(ifnet_label_destroy)
184 CHECK_SET_HOOK(ifnet_label_externalize)
185 CHECK_SET_HOOK(ifnet_label_init)
186 CHECK_SET_HOOK(ifnet_label_internalize)
187 CHECK_SET_HOOK(ifnet_label_update)
188 CHECK_SET_HOOK(ifnet_label_recycle)
189
190 CHECK_SET_HOOK(inpcb_check_deliver)
191 CHECK_SET_HOOK(inpcb_label_associate)
192 CHECK_SET_HOOK(inpcb_label_destroy)
193 CHECK_SET_HOOK(inpcb_label_init)
194 CHECK_SET_HOOK(inpcb_label_recycle)
195 CHECK_SET_HOOK(inpcb_label_update)
196
197 CHECK_SET_HOOK(iokit_check_device)
198
199 CHECK_SET_HOOK(ipq_label_associate)
200 CHECK_SET_HOOK(ipq_label_compare)
201 CHECK_SET_HOOK(ipq_label_destroy)
202 CHECK_SET_HOOK(ipq_label_init)
203 CHECK_SET_HOOK(ipq_label_update)
204
205 CHECK_SET_HOOK(file_check_library_validation)
206
207 CHECK_SET_HOOK(vnode_notify_setacl)
208 CHECK_SET_HOOK(vnode_notify_setattrlist)
209 CHECK_SET_HOOK(vnode_notify_setextattr)
210 CHECK_SET_HOOK(vnode_notify_setflags)
211 CHECK_SET_HOOK(vnode_notify_setmode)
212 CHECK_SET_HOOK(vnode_notify_setowner)
213 CHECK_SET_HOOK(vnode_notify_setutimes)
214 CHECK_SET_HOOK(vnode_notify_truncate)
215
216 CHECK_SET_HOOK(mbuf_label_associate_bpfdesc)
217 CHECK_SET_HOOK(mbuf_label_associate_ifnet)
218 CHECK_SET_HOOK(mbuf_label_associate_inpcb)
219 CHECK_SET_HOOK(mbuf_label_associate_ipq)
220 CHECK_SET_HOOK(mbuf_label_associate_linklayer)
221 CHECK_SET_HOOK(mbuf_label_associate_multicast_encap)
222 CHECK_SET_HOOK(mbuf_label_associate_netlayer)
223 CHECK_SET_HOOK(mbuf_label_associate_socket)
224 CHECK_SET_HOOK(mbuf_label_copy)
225 CHECK_SET_HOOK(mbuf_label_destroy)
226 CHECK_SET_HOOK(mbuf_label_init)
227
228 CHECK_SET_HOOK(mount_check_fsctl)
229 CHECK_SET_HOOK(mount_check_getattr)
230 CHECK_SET_HOOK(mount_check_label_update)
231 CHECK_SET_HOOK(mount_check_mount)
232 CHECK_SET_HOOK(mount_check_remount)
233 CHECK_SET_HOOK(mount_check_setattr)
234 CHECK_SET_HOOK(mount_check_stat)
235 CHECK_SET_HOOK(mount_check_umount)
236 CHECK_SET_HOOK(mount_label_associate)
237 CHECK_SET_HOOK(mount_label_destroy)
238 CHECK_SET_HOOK(mount_label_externalize)
239 CHECK_SET_HOOK(mount_label_init)
240 CHECK_SET_HOOK(mount_label_internalize)
241
242 CHECK_SET_HOOK(netinet_fragment)
243 CHECK_SET_HOOK(netinet_icmp_reply)
244 CHECK_SET_HOOK(netinet_tcp_reply)
245
246 CHECK_SET_HOOK(pipe_check_ioctl)
247 CHECK_SET_HOOK(pipe_check_kqfilter)
248 CHECK_SET_HOOK(pipe_check_label_update)
249 CHECK_SET_HOOK(pipe_check_read)
250 CHECK_SET_HOOK(pipe_check_select)
251 CHECK_SET_HOOK(pipe_check_stat)
252 CHECK_SET_HOOK(pipe_check_write)
253 CHECK_SET_HOOK(pipe_label_associate)
254 CHECK_SET_HOOK(pipe_label_copy)
255 CHECK_SET_HOOK(pipe_label_destroy)
256 CHECK_SET_HOOK(pipe_label_externalize)
257 CHECK_SET_HOOK(pipe_label_init)
258 CHECK_SET_HOOK(pipe_label_internalize)
259 CHECK_SET_HOOK(pipe_label_update)
260
261 CHECK_SET_HOOK(policy_destroy)
262 /* special hooks for policy init's */
263 .mpo_policy_init = hook_policy_init,
264 .mpo_policy_initbsd = hook_policy_initbsd,
265 CHECK_SET_HOOK(policy_syscall)
266
267 CHECK_SET_HOOK(system_check_sysctlbyname)
268 CHECK_SET_HOOK(proc_check_inherit_ipc_ports)
269 CHECK_SET_HOOK(vnode_check_rename)
270 CHECK_SET_HOOK(kext_check_query)
271 CHECK_SET_HOOK(proc_notify_exec_complete)
272 .mpo_reserved5 = (mpo_reserved_hook_t *)common_hook,
273 .mpo_reserved6 = (mpo_reserved_hook_t *)common_hook,
274 CHECK_SET_HOOK(proc_check_expose_task)
275 CHECK_SET_HOOK(proc_check_set_host_special_port)
276 CHECK_SET_HOOK(proc_check_set_host_exception_port)
277 CHECK_SET_HOOK(exc_action_check_exception_send)
278 CHECK_SET_HOOK(exc_action_label_associate)
279 CHECK_SET_HOOK(exc_action_label_populate)
280 CHECK_SET_HOOK(exc_action_label_destroy)
281 CHECK_SET_HOOK(exc_action_label_init)
282 CHECK_SET_HOOK(exc_action_label_update)
283
284 CHECK_SET_HOOK(vnode_check_trigger_resolve)
285 .mpo_reserved1 = (mpo_reserved_hook_t *)common_hook,
286 .mpo_reserved2 = (mpo_reserved_hook_t *)common_hook,
287 .mpo_reserved3 = (mpo_reserved_hook_t *)common_hook,
288 CHECK_SET_HOOK(skywalk_flow_check_connect)
289 CHECK_SET_HOOK(skywalk_flow_check_listen)
290
291 CHECK_SET_HOOK(posixsem_check_create)
292 CHECK_SET_HOOK(posixsem_check_open)
293 CHECK_SET_HOOK(posixsem_check_post)
294 CHECK_SET_HOOK(posixsem_check_unlink)
295 CHECK_SET_HOOK(posixsem_check_wait)
296 CHECK_SET_HOOK(posixsem_label_associate)
297 CHECK_SET_HOOK(posixsem_label_destroy)
298 CHECK_SET_HOOK(posixsem_label_init)
299 CHECK_SET_HOOK(posixshm_check_create)
300 CHECK_SET_HOOK(posixshm_check_mmap)
301 CHECK_SET_HOOK(posixshm_check_open)
302 CHECK_SET_HOOK(posixshm_check_stat)
303 CHECK_SET_HOOK(posixshm_check_truncate)
304 CHECK_SET_HOOK(posixshm_check_unlink)
305 CHECK_SET_HOOK(posixshm_label_associate)
306 CHECK_SET_HOOK(posixshm_label_destroy)
307 CHECK_SET_HOOK(posixshm_label_init)
308
309 CHECK_SET_HOOK(proc_check_debug)
310 CHECK_SET_HOOK(proc_check_fork)
311 CHECK_SET_HOOK(proc_check_get_task_name)
312 CHECK_SET_HOOK(proc_check_get_task)
313 CHECK_SET_HOOK(proc_check_getaudit)
314 CHECK_SET_HOOK(proc_check_getauid)
315 CHECK_SET_HOOK(proc_check_getlcid)
316 CHECK_SET_HOOK(proc_check_mprotect)
317 CHECK_SET_HOOK(proc_check_sched)
318 CHECK_SET_HOOK(proc_check_setaudit)
319 CHECK_SET_HOOK(proc_check_setauid)
320 CHECK_SET_HOOK(proc_check_setlcid)
321 CHECK_SET_HOOK(proc_check_signal)
322 CHECK_SET_HOOK(proc_check_wait)
323 CHECK_SET_HOOK(proc_label_destroy)
324 CHECK_SET_HOOK(proc_label_init)
325
326 CHECK_SET_HOOK(socket_check_accept)
327 CHECK_SET_HOOK(socket_check_accepted)
328 CHECK_SET_HOOK(socket_check_bind)
329 CHECK_SET_HOOK(socket_check_connect)
330 CHECK_SET_HOOK(socket_check_create)
331 CHECK_SET_HOOK(socket_check_deliver)
332 CHECK_SET_HOOK(socket_check_kqfilter)
333 CHECK_SET_HOOK(socket_check_label_update)
334 CHECK_SET_HOOK(socket_check_listen)
335 CHECK_SET_HOOK(socket_check_receive)
336 CHECK_SET_HOOK(socket_check_received)
337 CHECK_SET_HOOK(socket_check_select)
338 CHECK_SET_HOOK(socket_check_send)
339 CHECK_SET_HOOK(socket_check_stat)
340 CHECK_SET_HOOK(socket_check_setsockopt)
341 CHECK_SET_HOOK(socket_check_getsockopt)
342 CHECK_SET_HOOK(socket_label_associate_accept)
343 CHECK_SET_HOOK(socket_label_associate)
344 CHECK_SET_HOOK(socket_label_copy)
345 CHECK_SET_HOOK(socket_label_destroy)
346 CHECK_SET_HOOK(socket_label_externalize)
347 CHECK_SET_HOOK(socket_label_init)
348 CHECK_SET_HOOK(socket_label_internalize)
349 CHECK_SET_HOOK(socket_label_update)
350
351 CHECK_SET_HOOK(socketpeer_label_associate_mbuf)
352 CHECK_SET_HOOK(socketpeer_label_associate_socket)
353 CHECK_SET_HOOK(socketpeer_label_destroy)
354 CHECK_SET_HOOK(socketpeer_label_externalize)
355 CHECK_SET_HOOK(socketpeer_label_init)
356
357 CHECK_SET_HOOK(system_check_acct)
358 CHECK_SET_HOOK(system_check_audit)
359 CHECK_SET_HOOK(system_check_auditctl)
360 CHECK_SET_HOOK(system_check_auditon)
361 CHECK_SET_HOOK(system_check_host_priv)
362 CHECK_SET_HOOK(system_check_nfsd)
363 CHECK_SET_HOOK(system_check_reboot)
364 CHECK_SET_HOOK(system_check_settime)
365 CHECK_SET_HOOK(system_check_swapoff)
366 CHECK_SET_HOOK(system_check_swapon)
367 CHECK_SET_HOOK(socket_check_ioctl)
368
369 CHECK_SET_HOOK(sysvmsg_label_associate)
370 CHECK_SET_HOOK(sysvmsg_label_destroy)
371 CHECK_SET_HOOK(sysvmsg_label_init)
372 CHECK_SET_HOOK(sysvmsg_label_recycle)
373 CHECK_SET_HOOK(sysvmsq_check_enqueue)
374 CHECK_SET_HOOK(sysvmsq_check_msgrcv)
375 CHECK_SET_HOOK(sysvmsq_check_msgrmid)
376 CHECK_SET_HOOK(sysvmsq_check_msqctl)
377 CHECK_SET_HOOK(sysvmsq_check_msqget)
378 CHECK_SET_HOOK(sysvmsq_check_msqrcv)
379 CHECK_SET_HOOK(sysvmsq_check_msqsnd)
380 CHECK_SET_HOOK(sysvmsq_label_associate)
381 CHECK_SET_HOOK(sysvmsq_label_destroy)
382 CHECK_SET_HOOK(sysvmsq_label_init)
383 CHECK_SET_HOOK(sysvmsq_label_recycle)
384 CHECK_SET_HOOK(sysvsem_check_semctl)
385 CHECK_SET_HOOK(sysvsem_check_semget)
386 CHECK_SET_HOOK(sysvsem_check_semop)
387 CHECK_SET_HOOK(sysvsem_label_associate)
388 CHECK_SET_HOOK(sysvsem_label_destroy)
389 CHECK_SET_HOOK(sysvsem_label_init)
390 CHECK_SET_HOOK(sysvsem_label_recycle)
391 CHECK_SET_HOOK(sysvshm_check_shmat)
392 CHECK_SET_HOOK(sysvshm_check_shmctl)
393 CHECK_SET_HOOK(sysvshm_check_shmdt)
394 CHECK_SET_HOOK(sysvshm_check_shmget)
395 CHECK_SET_HOOK(sysvshm_label_associate)
396 CHECK_SET_HOOK(sysvshm_label_destroy)
397 CHECK_SET_HOOK(sysvshm_label_init)
398 CHECK_SET_HOOK(sysvshm_label_recycle)
399
400 CHECK_SET_HOOK(proc_notify_exit)
401 CHECK_SET_HOOK(mount_check_snapshot_revert)
402 CHECK_SET_HOOK(vnode_check_getattr)
403 CHECK_SET_HOOK(mount_check_snapshot_create)
404 CHECK_SET_HOOK(mount_check_snapshot_delete)
405 CHECK_SET_HOOK(vnode_check_clone)
406 CHECK_SET_HOOK(proc_check_get_cs_info)
407 CHECK_SET_HOOK(proc_check_set_cs_info)
408
409 CHECK_SET_HOOK(iokit_check_hid_control)
410
411 CHECK_SET_HOOK(vnode_check_access)
412 CHECK_SET_HOOK(vnode_check_chdir)
413 CHECK_SET_HOOK(vnode_check_chroot)
414 CHECK_SET_HOOK(vnode_check_create)
415 CHECK_SET_HOOK(vnode_check_deleteextattr)
416 CHECK_SET_HOOK(vnode_check_exchangedata)
417 CHECK_SET_HOOK(vnode_check_exec)
418 CHECK_SET_HOOK(vnode_check_getattrlist)
419 CHECK_SET_HOOK(vnode_check_getextattr)
420 CHECK_SET_HOOK(vnode_check_ioctl)
421 CHECK_SET_HOOK(vnode_check_kqfilter)
422 CHECK_SET_HOOK(vnode_check_label_update)
423 CHECK_SET_HOOK(vnode_check_link)
424 CHECK_SET_HOOK(vnode_check_listextattr)
425 CHECK_SET_HOOK(vnode_check_lookup)
426 CHECK_SET_HOOK(vnode_check_open)
427 CHECK_SET_HOOK(vnode_check_read)
428 CHECK_SET_HOOK(vnode_check_readdir)
429 CHECK_SET_HOOK(vnode_check_readlink)
430 CHECK_SET_HOOK(vnode_check_rename_from)
431 CHECK_SET_HOOK(vnode_check_rename_to)
432 CHECK_SET_HOOK(vnode_check_revoke)
433 CHECK_SET_HOOK(vnode_check_select)
434 CHECK_SET_HOOK(vnode_check_setattrlist)
435 CHECK_SET_HOOK(vnode_check_setextattr)
436 CHECK_SET_HOOK(vnode_check_setflags)
437 CHECK_SET_HOOK(vnode_check_setmode)
438 CHECK_SET_HOOK(vnode_check_setowner)
439 CHECK_SET_HOOK(vnode_check_setutimes)
440 CHECK_SET_HOOK(vnode_check_stat)
441 CHECK_SET_HOOK(vnode_check_truncate)
442 CHECK_SET_HOOK(vnode_check_unlink)
443 CHECK_SET_HOOK(vnode_check_write)
444 CHECK_SET_HOOK(vnode_label_associate_devfs)
445 CHECK_SET_HOOK(vnode_label_associate_extattr)
446 CHECK_SET_HOOK(vnode_label_associate_file)
447 CHECK_SET_HOOK(vnode_label_associate_pipe)
448 CHECK_SET_HOOK(vnode_label_associate_posixsem)
449 CHECK_SET_HOOK(vnode_label_associate_posixshm)
450 CHECK_SET_HOOK(vnode_label_associate_singlelabel)
451 CHECK_SET_HOOK(vnode_label_associate_socket)
452 CHECK_SET_HOOK(vnode_label_copy)
453 CHECK_SET_HOOK(vnode_label_destroy)
454 CHECK_SET_HOOK(vnode_label_externalize_audit)
455 CHECK_SET_HOOK(vnode_label_externalize)
456 CHECK_SET_HOOK(vnode_label_init)
457 CHECK_SET_HOOK(vnode_label_internalize)
458 CHECK_SET_HOOK(vnode_label_recycle)
459 CHECK_SET_HOOK(vnode_label_store)
460 CHECK_SET_HOOK(vnode_label_update_extattr)
461 CHECK_SET_HOOK(vnode_label_update)
462 CHECK_SET_HOOK(vnode_notify_create)
463 CHECK_SET_HOOK(vnode_check_signature)
464 CHECK_SET_HOOK(vnode_check_uipc_bind)
465 CHECK_SET_HOOK(vnode_check_uipc_connect)
466
467 CHECK_SET_HOOK(proc_check_run_cs_invalid)
468 CHECK_SET_HOOK(proc_check_suspend_resume)
469
470 CHECK_SET_HOOK(thread_userret)
471
472 CHECK_SET_HOOK(iokit_check_set_properties)
473
474 CHECK_SET_HOOK(vnode_check_searchfs)
475
476 CHECK_SET_HOOK(priv_check)
477 CHECK_SET_HOOK(priv_grant)
478
479 CHECK_SET_HOOK(proc_check_map_anon)
480
481 CHECK_SET_HOOK(vnode_check_fsgetpath)
482
483 CHECK_SET_HOOK(iokit_check_open)
484
485 CHECK_SET_HOOK(proc_check_ledger)
486
487 CHECK_SET_HOOK(vnode_notify_rename)
488
489 CHECK_SET_HOOK(vnode_check_setacl)
490
491 CHECK_SET_HOOK(vnode_notify_deleteextattr)
492
493 CHECK_SET_HOOK(system_check_kas_info)
494
495 CHECK_SET_HOOK(vnode_check_lookup_preflight)
496
497 CHECK_SET_HOOK(vnode_notify_open)
498
499 CHECK_SET_HOOK(system_check_info)
500
501 CHECK_SET_HOOK(pty_notify_grant)
502 CHECK_SET_HOOK(pty_notify_close)
503
504 CHECK_SET_HOOK(vnode_find_sigs)
505
506
507 CHECK_SET_HOOK(kext_check_load)
508 CHECK_SET_HOOK(kext_check_unload)
509
510 CHECK_SET_HOOK(proc_check_proc_info)
511
512 CHECK_SET_HOOK(vnode_notify_link)
513
514 CHECK_SET_HOOK(iokit_check_filter_properties)
515 CHECK_SET_HOOK(iokit_check_get_property)
516};
517
518/*
519 * Policy definition
520 */
521static SECURITY_READ_ONLY_LATE(struct mac_policy_conf) policy_conf = {
522 .mpc_name = "CHECK",
523 .mpc_fullname = "Check Assumptions Policy",
524 .mpc_field_off = NULL, /* no label slot */
525 .mpc_labelnames = NULL, /* no policy label names */
526 .mpc_labelname_count = 0, /* count of label names is 0 */
527 .mpc_ops = &policy_ops, /* policy operations */
528 .mpc_loadtime_flags = 0,
529 .mpc_runtime_flags = 0,
530};
531
532static SECURITY_READ_ONLY_LATE(mac_policy_handle_t) policy_handle;
533
534/*
535 * Init routine; for a loadable policy, this would be called during the KEXT
536 * initialization; we're going to call this from bsd_init() if the boot
537 * argument for checking is present.
538 */
539errno_t
540check_policy_init(int flags)
541{
542 /* Only instantiate the module if we have been asked to do checking */
543 if (!flags)
544 return 0;
545
546 policy_flags = flags;
547
548 return mac_policy_register(&policy_conf, &policy_handle, NULL);
549}
550